Electric actuator OMAL EA on/off

OMAL EA series electric actuators are suitable for on/off control of ball and butterfly valves where compressed air is not available. The actuator mounts to the valve with an ISO 5211 flange, and the position can be read from an external graduated indicator without opening the enclosure.

Features

• Mode of operation: electric on/off (two-position)
• Torque range: 35–240 Nm nominal, maximum peak torque 45–280 Nm
• Supply voltage: 24 VAC/DC ±10 %
• Rotation angle: 90° nominal, adjustable between 20° and 95°
• Setting: continuous, by self-locking cams and electromechanical limit switches
• Enclosure: IP67 in compliance with EN 60529
• Working temperature: −25…+60 °C (storage −40…+90 °C)
• Service: S3 ED 50 % in compliance with CEI 60043
• Maximum working noise: below 70 dB(A)

Construction and equipment

• Emergency manual override — connection for a manual lever, hexagonal wrench included
• External visual position indicator with graduated top
• Space heater as standard — prevents condensation inside the enclosure
• Motor with built-in auto-reset thermostatic protection
• Motor with Class F insulation (155 °C)
• Rotor supported by ball bearings
• Two SPDT auxiliary electromechanical limit switches with cams adjustable all along the stroke
• IP67 connectors also available pre-wired on request

Materials

• Body, gear box cap, electric-set cap and terminal-box cap: aluminium
• Position indicator: PMMA
• Connector: PA6 / PBT
• Lever connection: steel
• Female shaft and lever: stainless steel

Directives

• Low Voltage Directive 2014/35/EU
• Electromagnetic Compatibility Directive 2014/30/EC

Note the supply voltage. These codes are the 24 VAC/DC version. The series is also available in 230 VAC, 115 VAC and 24 VDC, and with IP68 enclosure — the IP68 version differs in dimensions and weight, so it is not a direct substitute.

Operation time at voltage and load is given in the working diagrams of the catalogue. Pneumatic alternatives for the same duty are the double-acting AGO DAN and the spring-return AGO SRN.